Ocean Floor Videoquiz

What is the underwater edge of the continent called?

• Continental shelf

• Continental slope

• Abyssal plain

• Continental rise

What is the depth of the continental shelf?

• About 600 feet

• About 50 miles

• About 12 or 13 miles

• About 7 miles

What is the largest area of flatland that covers almost half the ocean called?

• Mid-ocean ridge

• Seamount

• Ocean trench

• Abyssal plain

What are the underwater mountains called?

• Ocean trenches

• Seafloor vents

• Mid-ocean ridges

• Seamounts

What is the deepest part on earth that may extend five or six miles below sea level?

• Ocean trench

• Abyssal plain

• Continental slope

• Mid-ocean ridge

What is formed when hot molten rock rises from inside the earth's surface and cools into a solid?

• Seafloor vents

• Seamounts

• Mid-ocean ridges

• Continental slope

What is the chain of mountains called that wind their way through all the world's major oceans?

• Seafloor vents

• Abyssal plain

• Mid-ocean ridge

• Continental rise

What is the v-shaped valley that is long and narrow and the deepest part on earth?

• Mid-ocean ridge

• Continental slope

• Ocean trench

• Abyssal plain

What is the large area of flatland that covers almost half the ocean formed by burying hills and valleys under a layer of sand and mud?

• Seamount

• Mid-ocean ridge

• Abyssal plain

• Ocean trench

What is the hot springs called that are formed when seawater trickles down from newly formed ocean crust?

• Continental slope

• Mid-ocean ridges

• Seamounts

• Seafloor vents